Early A V8 swap advice

As to the brakes
I have the KHers on my 68 Barracuda. And I also have the 10x2s on the back. I have 235/60-14s on the front and 295/50-15s on the back. I installed 15/16 w/cs in the back and a 15/16 dual M/C for power brakes. I used a 73 Dart brake booster.
I used the 73 Combination valve but gutted the proportioning section out of it, so it no longer works. I use it for a distribution block and the safety switch still works too. By doing this the rear brakes now receive full line pressure.
The rear brakes work awesome, and because the rear tires are so big compared to the front, they do a lot of the work. And they do not lock up first.
I remember swapping out those rear w/cs several times during testing and in fact there may currently be 1 inchers in there; I don't recall, as that was in year 2000 or so.
I also installed the braided lines up front, those have a nice feel to them.
The rear shoes do have to be replaced more often than the front pads tho, probably close to twice as often.